Boston couldn't score because LA is one of the top defensive teams in the league especially in the paint. Defense is what wins championships, Bost came within a hair of winning the championship but that LA court is tough, if they had the home court and Perkins I think they would have won it.
Thibs is a gamble because he has no head coaching experience and I was surprised the Bulls hired him esp. after DelNegro. That said I think he will be successful because of his resume, he's helped Boston and Houston during his stays there. He helped Yao become a better player more than Ewing did and Nate seems like he's a better defender since he went to Boston.